fix: tighten permission_suggestions type from list[Any] to list[dict[str, Any]]

[2023Anita]

Summary

Fix PermissionRequestHookInput.permission_suggestions type annotation from list[Any] to list[dict[str, Any]].

Root Cause

The wire protocol delivers raw JSON objects (plain dicts) for each permission suggestion, but the field was typed as list[Any], suppressing all type-checking on consumers. The Any annotation was a placeholder that was never tightened.

Verification

• python -m ruff check src/
• python -m mypy src/claude_agent_sdk/types.py
• No runtime behavior changes — purely a type-level correction

Risk / Compatibility

Zero risk. This is a strict narrowing of the type annotation — dict[str, Any] is a subtype of Any, so all existing code remains compatible. Type checkers will gain coverage; no runtime behavior changes.

Related

Closes #957